Grease-cup.



TATENTED MAR. 19, 1907.

A. J. GRAY.

GREASE CUP. A APPLICATION FILED MAE. 6', 1905. RBNEWED JUNE ZZ, 19

UNITED STATES*- ALMoN J.' GRAY, oF sfr. PAUL, MINNES OFFICE.

OTA, ASSIGN OR -BY MESNE ASSIGN- 'MEN TS, TO WILLIAM E. S. STRONG, OF CHICAGO, ILLINOIS, AND FRANK V. BARTLETT, OF DETROIT, MICHIGAN.

GREASE-OUP-- Specification of Letters Patent.

Patented March 19, 1907.

Application filed March 6, 1905. Renewed June 22, 1906. Serial No. 322,952.

To a/Z whom it may concern.-

Beit known that I, ALMON J. GRAY, of St. Paul, Ramsey county, Minnesota, have invented certain new and useful Im rovements in Grease-Cups, of which the fol owing is a specification.

The object of my invenilon to. provide means to prevent the top or cover of a greasecup from accidentally working loose and coming 0H' the cup-whilein use.

The .invention consists generally in a grease-cup cover having a retarding device arranged to yieldingly resist rotary movement of the cover on the cup.

In the accompanying drawings, forming part of this specification, Figure l is a vertic'al sectional view of a grease-cup with my invention applied thereto. Fig. 2 is a similar view taken on a section-line substantially at right angles to the section-line of Fig. 1. Fig. 3 is a horizontal sectional view looking into the cup. Fig. 4 is a vertical sectional view of a modified construction. Fig 5 is a similar view taken on a Section-'line substantially at right angles to thesection-line of Fig. 4.

In the drawing, 2 represents a grease-cup, having a threaded shank 3 for mounting the device on a bearing. The walls at the top of the cup are exterirly threaded to receive an interiorly-threaded cap orvcover 4, that fits thereon and is revolved to 'raise or lower the cap to adjust the same. I have found where these cups are used upon bearings of various kinds that the jar or vibration of the machinery will frequently cause the cap to rotate sufficiently on the cup to yrelieve the pressure on the grease and prevent it from being fed down into the bearing. There is also danger of the cap workin loose sufficiently to become entirely det'ac ed from the cup. To obviate this objection, I provlde a loop or coil 5, preferably off'wire, Within'the cup,held therein by anysuitable means', as solder A6, and having nvifardly-turned spring ends 7,`that project in parallel relation with.

one another across the cup-chamber. These ends are spaced from one another and are under sufficient tension to return to their normal position when temporarily separated' a depending finger or pin secured to the cap 4 and having 'a flattened lower end that hangs between the ends `7. This finger is Wider at y stantia by any objectbetween them. 8 represents the point where it passes between the ends 7 than the width of the space between them, and lconsequently the cap and nger cannot be turned without 'separating the ends and placing the wire under tension. The tension of the wire is not sufficient to prevent 'the ca and finger from being easily turned by han but will prevent accidental rotation of the cap through the vibration of the bearing or box upon which the cup may `be mounted. The cap can thereforebe adjusted tothe desired position on'the cup and will remain in suchl position until such time as it is desired toreadjust it or refill the cup.

InFigs. 4 and l5. I have shown'a slight modi- Haat-ion, -which' consists in providing a flat sprmg 9 1n the shank oi the cup having upwardly-projecting spring ends 10 between' e iinger is suspended. These ends/ rotation. Other modi/cations in the arrangement -of the yielding resistance will suggest themselves toothers skilled in this art, andhence I doinot'wish to be confined to the constructions shown herein'.

"I claim as my invention- 1.'` The combination, with a grease-cup havin' a revoluble' cover, of Va spring arrange within said cup and having ends pro- 'ectlng across. the cup, said ends being free to e moved toward or fromeach other, and 'a finger carried by said cover and having a attened lower .end that depends between the ends of'said spring, substantially as described. 2. The comb'nation, with a ease-cup having a rvolu le cover, of a spring device secured withinsaid cup and havlngfree ends that project into the cup-chamber, said ends bein A spaced from one another and held in para lel relation by the tension of said spring. and afinger carried by said coverand havin a flattened lower end of greater Width -than t e distance between theyree ends of said spring andde endingbe'tween said free ends,l sub lly as described. j 3. A.,grease-c'up comprisin a fixed and a revolublemember, a spring evice mounted i on one of sald members within sald c1110 and roo means cantied by the other memberavnvd embraced by said spring device and whereby said levoluble member is yieldingly held against premature movement, substantial@T as described.

spaced from one another and held in yielding substantially parallel relation with one an other, and a finger carried by' said cover and depending bet-Ween said free ends, the p'at of said finger between said ends beingil wider than the nornnil distance between said ends, for the purpose speei'lied.

In Witness whereof l haveIv hereunto set my hand this 18th day of January, i905.

ALMON J. GRAY.

Witnesses:

RICHARD PAUL, C. MAGNAMARA. 

